For the European compare/contrast:
A good response could be a comparison of the economic effects of the Depression as well as the political responses. Germany and Italy - faced more devastation than England or France did during the Depression. Representative governments were better able to fend off the push to have authoritarian leaders handle the economic collapse. Economics & politics are often a twisted mess of interrelation - but try to sift out the mess so that it is not over simplified. Rather, show how the economics influenced the political responses & how the political actions thus reacted to the depressed economy
For the European CCOT:
Step one should be defining a traditional European 'nation-state'
Then illustrate the influence of the Cold War alliances (those crazy 'world' designations) and how this impacted the relationships within the United Nations & how these global associations lead to messing with sovereign nations.
Then acknowledge what NGOs, multi-national organizations, and the EU have pulled the definition of a 'nation-state' into a different meaing - thus the increase of globalization has changed what these places and people can identify as being unique to them (nationalism)